w3schools JavaScript quiz
14. How to insert a comment that has more than one line?
/*This comment has more than one line*/
13. How can you add a comment in a JavaScript?
//This is a comment
4. What is the correct syntax for referring to an external script called "xxx.js"? <script name="xxx.js"> <script src="xxx.js"> <script href="xxx.js">
<script src="xxx.js">
1. Inside which HTML element do we put the JavaScript?
<script>
23. Which operator is used to assign a value to a variable?
=
17. How do you find the number with the highest value of x and y?
Math.max(x, y)
16. How do you round the number 7.25, to the nearest integer?
Math.round(7.25)
25. Is JavaScript case-sensitive?
Yes
6. How do you write "Hello World" in an alert box?
alert("Hello World");
2. What is the correct JavaScript syntax to change the content of the HTML element below? <p id="demo">This is a demonstration.</p>
document.getElementById("demo").innerHTML = "Hello World!";
12. How does a FOR loop start?
for (i = 0; i <= 5; i++)
7. How do you create a function in JavaScript?
function myFunction()
10. How to write an IF statement for executing some code if "i" is NOT equal to 5?
if (i != 5)
9. How to write an IF statement in JavaScript?
if (i == 5)
8. How do you call a function named "myFunction"?
myFunction()
20. How can you detect the client's browser name?
navigator.appName
21. Which event occurs when the user clicks on an HTML element?
onclick
24. What will the following code return: Boolean(10 > 9)
true
22. How do you declare a JavaScript variable?
var carName;
15. What is the correct way to write a JavaScript array?
var colors = ["red", "green", "blue"]
18. What is the correct JavaScript syntax for opening a new window called "w2" ?
w2 = window.open("http://www.w3schools.com");
11. How does a WHILE loop start?
while (i <= 10)
19. JavaScript is the same as Java.
False
5. The external JavaScript file must contain the <script> tag.
False
3. Where is the correct place to insert a JavaScript? The <body> section Both the <head> section and the <body> section are correct The <head> section
Both the <head> section and the <body> section are correct
